Use a 9:1 UnUN , there are tons available as a device and tons of DIY's like Steve Ellington on youtube.
Closest whole number ratio, since you can't have partial turns , is 36 / 4 = 9 :1 , is this easier to understand ? Also the Characteristic Impedance of a Coax or any Transmission Line is not the impedance at a random length of cable. Characteristic impedance is the 'Amplitude' in the sinusoidal function of the impedance along a wavelength of that cable. There are other ways to match these 2 impedances , but the simplest for these conditions is the 9:1 UnUn solution.
